Xpath - how to get distinct values

Hi,

I'm using PHP to to this:
$xml = simplexml_load_file("WebsitePropertyData.xml");
$results = $xml->xpath("/dataroot/WebsitePropertyData/City");

It returns cities. I want to know how to return distinct values (i.e. no repeats). I am aware of the distinct-values function, but I have no idea how to apply it to my own code.

Thanks,

Warren
warrenrapsonAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Geert BormansInformation ArchitectCommented:
you can only use distinct-values() if you use an XSLT2.0 processor
$results = $xml->xpath("distinct-values(/dataroot/WebsitePropertyData/City)");

likely you will need something like this (which will be slow on huge sets)
$results = $xml->xpath("/dataroot/WebsitePropertyData/City[not(. = preceding::City)]");

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
XML

From novice to tech pro — start learning today.